Malicious PDF — malware analysis report

Static analysis result for SHA-256 6369a2b1bbd57906…

MALICIOUS

PDF

45.9 KB Created: 2020-10-10 22:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ab03cf882b13bfc215af2fe1e8eda2bc SHA-1: 8004dac920037e8e07580c1359b38e9c24380335 SHA-256: 6369a2b1bbd5790688c2ccf5111d4e2cad731a31b914bfc35c8763389629f32d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.club/pify?keyword=duke+energy+power+outage+updates In PDF document text
    • http://files.thedetailors.com/uploads/1/3/1/4/131437776/2675891.pdfIn PDF document text
    • http://files.capitalcitycivitan.net/uploads/1/3/1/3/131398542/muputidamaxape-bigekadilukirad.pdfIn PDF document text
    • http://files.le-manuel-du-tage-mage.fr/uploads/1/3/2/7/132741476/jafudupejik_xemum_dovemijapi.pdfIn PDF document text
    • http://files.kippysfarm.com/uploads/1/3/1/6/131607029/rigigujolizeb.pdfIn PDF document text
    • http://files.wrightsmountaingoldens.com/uploads/1/3/1/1/131164157/jisutimaxi-dikotu-fotufoloxa-nedig.pdfIn PDF document text
    • https://site-1040262.mozfiles.com/files/1040262/mamezesezepuwitilar.pdfIn PDF document text
    • https://site-1037282.mozfiles.com/files/1037282/91336436452.pdfIn PDF document text
    • https://site-1039506.mozfiles.com/files/1039506/nitufavorupoforevijimom.pdfIn PDF document text
    • https://site-1038427.mozfiles.com/files/1038427/batutufajubufotepag.pdfIn PDF document text
    • http://jijev.marc-foundation.org/uploads/1/3/1/3/131380344/moguzalijikujej_tirakutatamojag.pdfIn PDF document text
    • http://files.nplfiles.com/uploads/1/3/2/3/132303205/kenawiv-sufubawisitev-gafaxo.pdfIn PDF document text
    • http://files.k4amg.org/uploads/1/3/1/4/131438583/dizubukoserab.pdfIn PDF document text
    • http://files.pittsburghcebs.com/uploads/1/3/0/7/130775743/5995596.pdfIn PDF document text
    • http://files.photographybydennisj.com/uploads/1/3/1/4/131455463/7465462.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000754a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x754A 5352 bytes
SHA-256: 8bb8bd0e1393acba50a0119c4ab79ffb38d051d19212e69486d9c3a3f75b075a
font_01_sfnt_off000087ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AB 10264 bytes
SHA-256: f487bedbf7ffb4af341704382ff8af82f9d990dfe10ebd94c65f259eafaa9dd6